bond_init() is not releasing rtnl_sem after register_netdevice() and
before calling unregister_netdevice() (from bond_free_all()) in the
exception path. As the device registration is not completed
(dev->reg_state == NETREG_REGISTERING), the call to
unregister_netdevice() triggers BUG_ON(dev->reg_state != NETREG_REGISTERED).
Signed-off-by: Florin Malita <[email protected]>
----
diff --git a/drivers/net/bonding/bond_main.c
b/drivers/net/bonding/bond_main.c
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -5039,6 +5039,10 @@ static int __init bonding_init(void)
return 0;
out_err:
+ /* give register_netdevice() a chance to complete */
+ rtnl_unlock();
+ rtnl_lock();
+
/* free and unregister all bonds that were successfully added */
bond_free_all();
-
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